Open Windows Security Click on Virus and threat protection Then click on Check for updates and then again click on Check for update It will start looking for new definition updates. Read: How to ...

Here are the basics: Microsoft Defender is the virus protection integrated into Windows by default. If no other antivirus program is installed and activated, Defender protects you against viruses. You ...

Microsoft had recently released new Defender anti-malware update package for Windows OS installation images, ie, for Windows Imaging Format (WIM) and VHD (Virtual Hard Disk) formats. The new ...